Add a check to make sure max_entities doesn't get overflowed.

1 files changed, 12 insertions, 0 deletions

diff --git a/world.c b/world.c
index 3b736e6..920484c 100644
--- a/world.c
+++ b/world.c
@@ -1,4 +1,6 @@
 #include "world.h"
+#include "platform.h"
+#include "error.h"
 
 void init_world(World* world) {
 	world->entity_count = 0;
@@ -7,6 +9,16 @@ void init_world(World* world) {
 Entity new_entity(World* world) {
 	Entity e;
 
+#if DEBUG
+	if (
+		world->entity_count >= max_entities
+		&& world->recycle_bin_count == 0
+	) {
+		platform_err("Too many entities.\n");
+		platform_abort(error_out_of_memory);
+	}
+#endif
+
 	e = 
 		world->recycle_bin_count > 0 ?
 		world->recycle_bin[--world->recycle_bin_count] :